Tyre size & options

Tyre size

Season

The width of the tyre indicated in millimeters, measured from sidewall to sidewall.

Aspect ratio describes the height of the sidewall as a percentage of the width of the tyre. Touring tyres usually have a higher aspect ratio, indicating a higher sidewall and resulting in a smoother ride. High performance tyres usually have a lower aspect ratio, resulting in better lateral stability.

This number specifies the outer edge of a wheel, holding the tyre, measured in inches.

A numerical code associated with the maximum load a tyre can carry at the speed indicated by its Speed index. A higher number indicates that the tire has a higher load capacity.

The letter indicating the maximum speed at which the tyre can carry a load corresponding to its Load Index.

* Driving distance after a puncture may vary depending on vehicle load, outside temperature, and when the TPMS is triggered. Bridgestone DriveGuard tyres are classified Wet Grip A in EU labeling. DriveGuard tyres are currently not available for vans, and are only available for cars equipped with a Tyre Pressure Monitoring System (TPMS).

** Bridgestone DriveGuard SUMMER ranks high in the following TÜV SÜD criteria compared to 3 competing conventional tyres: straight aquaplaning, aquaplaning in curve, dry braking, and lateral wet grip. It ranks at par with competitors with respect to wet braking and pass by noise, and is comparable in comfort. Test performed in November 2015 by TÜV SÜD Product Service GmbH (Report No. 713073923-5 – Tyre size 225/45 R17).